CN101616054A - A kind of bypass processing method, device and system and router - Google Patents
A kind of bypass processing method, device and system and router Download PDFInfo
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- CN101616054A CN101616054A CN200810068226A CN200810068226A CN101616054A CN 101616054 A CN101616054 A CN 101616054A CN 200810068226 A CN200810068226 A CN 200810068226A CN 200810068226 A CN200810068226 A CN 200810068226A CN 101616054 A CN101616054 A CN 101616054A
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Abstract
The embodiment of the invention discloses a kind of bypass processing method, receive new business and set up request message, obtain the required bandwidth resources information of described new business; Required bandwidth resources information according to described new business, if judge that described new business is loaded by former service transmission path, whether can trigger the Bypass bypass operation of this transmission path, if after setting up the Bypass path, load described new business according to described Bypass path; Otherwise, load described new business by described former service transmission path; And the embodiment of the invention also discloses a kind of bypass processing unit and system and router; Utilize embodiments of the invention, in the opening process of new business, reduce interruption times, improved business experience business.
Description
Technical field
The present invention relates to the data communication field, specifically, relate to a kind of bypass processing method, device and system and router.
Background technology
In general MLN (Multi-Layer Network) model, the levels network is client/service model, and lower floor's network is set up the node topology annexation that the FA tunnel is used for textural layer network.Generally past more upper strata, the operation exchange granularity is more little, the exchange of past more lower floor, the operation exchange granularity is big more.Since complex circuit designs, the operation exchange of same capability, short grained more exchange, technology is complicated more, and technological requirement is high more, and cost is also expensive more.So when network design and flow control, a basic principle is exactly to allow business walk lower level node transmit as far as possible, total like this network processes cost can hang down, a kind of bypass technology (Bypass technology) has appearred thus, this method is to set up through bottom link between two nodes of upper strata, and allows and formerly should go on business that node layer transmits and change by lower level node and transmit.
For the ease of understanding, being illustrated with the IP+Optical network below, in its IP backbone, P router (Provider ' s core router, service provider's core router) be mainly used in professional the forwarding, the IP bag that sends from source pe router (Provider ' s edge router, provider edge) passes through several middle P routers, to the purpose pe router, the described forwarding in this process all is to be realized by upper layer node through these P router forwarded hop-by-hop; Utilize the Bypass technology, after the flow from certain PE to another PE increases to a predetermined threshold value, business is not just done forwarding at middle P node, connect but between these two PE, set up through wavelength, the IP bag directly passes to purpose PE by optical channel from source PE, promptly changes by bottom layer node at former P node and transmits.
As described in Figure 1, R1 and R4 are pe routers, R2 and R3 are the P routers, T1-T4 is a wave-division device, in the network between two pe routers the capacity of link be the 9G bandwidth, setting the bandwidth usage threshold value that triggers the bypass operation is 80%, promptly as label switched path (Label Switched Path, when LSP) flow surpasses 7.2G altogether business is carried out the Bypass operation, no longer do the IP layer at intermediate node and transmit, only do photosphere and transmit.Suppose to exist in the current network 3 LSP (LSP1, LSP2 and LSP3), bandwidth all is 2G, route is R1-T1-T2-R2-T2-T3-R3-T3-T4-R4, now newly-increased 1 LSP (being LSP4), bandwidth also is 2G, when the LSP4 service fulfillment, after flow is normal, R1 can monitor bandwidth traffic total in the path and surpass predetermined threshold value, trigger the Bypass operation, set up a direct path from R1-R4, route is R1-T1-T2-T3-T4-R4, and professional LSP1～LSP4 is switched to new route gets on.
But the applicant finds in the process of this scheme of enforcement: for new business LSP4, at service fulfillment in the near future, because the Bypass operation, the route switching can cause professional hit, influences business experience.
Summary of the invention
In view of the above problems, the embodiment of the invention provides a kind of bypass processing method, device and system and router, opens the problem of back hit with new business in the solution prior art.
The disclosed bypass processing method of the embodiment of the invention comprises that receiving new business sets up request message, obtains the required bandwidth resources information of described new business; Required bandwidth resources information according to described new business, if judge that described new business is loaded by former service transmission path, whether can trigger the Bypass bypass operation of this transmission path, if after setting up the Bypass path, load described new business according to described Bypass path; Otherwise, load described new business by described former service transmission path.
The disclosed bypass processing module of the embodiment of the invention, this module is used for receiving after new business sets up request message, according to the required bandwidth resources information in the described request message, if judge that working as described new business is loaded by former service transmission path, whether can trigger the Bypass bypass operation of this transmission path, if after setting up the Bypass path, load described new business according to described Bypass path; Otherwise, load described new business by described former service transmission path.
The disclosed router of the embodiment of the invention, described router comprises decision package, described decision package is connected with processing unit with receiving element;
Described receiving element is used to receive new business and sets up solicited message, and described new business is set up and comprised the required bandwidth resources information of new business in the solicited message;
Described decision package, be used for required bandwidth resources information according to described new service request message, if judge that described new business is loaded by former service transmission path, whether can trigger the Bypass bypass operation of this transmission path, if instruction process unit loads described new business according to described Bypass path after setting up the Bypass path; Otherwise instruction process unit loads described new business by described former service transmission path;
The new business that described processing unit receives according to described receiving element is set up the described new business of instruction load of solicited message and described decision package.
The disclosed bypass treatment system of the embodiment of the invention, this system comprises a plurality of routers, and at least one is a provider edge in described a plurality of routers, and described provider edge directly or indirectly links to each other with other described routers,
This provider edge is used for after receiving the request message of setting up new business, according to the required bandwidth resources information in the described request message, if judge that working as described new business is loaded by former service transmission path, whether can trigger the Bypass bypass operation of this transmission path, if after setting up the Bypass path, load described new business according to described Bypass path; Otherwise, load described new business by described former service transmission path.
The disclosed bypass treatment system of the embodiment of the invention, this system comprises at least 1 server and a plurality of router, described server directly or indirectly links to each other with described a plurality of routers, this server is after receiving the request message of setting up new business, according to the required bandwidth resources information in the described request message, if judge that working as described new business is loaded by former service transmission path, whether can trigger the Bypass bypass operation of this transmission path, if instruct a router in described a plurality of router after setting up the Bypass path, to load described new business according to described Bypass path as the first node of described transmission path; Otherwise, instruct described router to load described new business by described former service transmission path as the first node of transmission path.
Utilize embodiments of the invention, because before new business is opened, carried out anticipation to whether carrying out the Bypass operation when doing path computing,, improved business experience so reduce interruption times in the opening process of new business to business.
Description of drawings
Fig. 1 is for carrying out the scene schematic diagram of Bypass operation in the prior art;
Fig. 2 is the method flow diagram of the embodiment of the invention;
Fig. 3 is the structure chart of router in the embodiment of the invention;
Fig. 4 is network system Fig. 1 in the embodiment of the invention;
Fig. 5 is network system Fig. 2 in the embodiment of the invention.
Embodiment
The scheme of embodiment of the invention record is before new business is opened, when path computing, carry out anticipation, judge the Bypass operation that after new business is opened by the transmission path of former business, whether can trigger described path, if, then do not carry out earlier service fulfillment, then calculate the Bypass path, and wait after the bypass path sets up successfully, directly new business is carried on the Bypass path; Otherwise, open new business according to the transmission path of former business.
In with network environment shown in Figure 1,2 pairs of present embodiments are specifically described in conjunction with the accompanying drawings:
Step 201: receive new business and set up request;
After being specially the foundation request of receiving new business SP4, the LSP4 service path is set up in request; Described new business is set up the information that carries new service request 2G bandwidth in the request;
Step 202: service path is calculated the total resources that while statistical service path needs;
Being specially the path of calculating earlier is R1-T1-T2-R2-T2-T3-R3-T3-T4-R4, add up the summation of former service resources and new service request resource on service path then, the summation of promptly calculating former business (LSP1, LSP2 and LSP3 business) total bandwidth 6G and new service request bandwidth 2G is 8G.
Step 203: according to the result of calculation of service path total resources in the step 202, if after this new business is directly set up in judgement, whether can trigger Bypass, if, execution in step 204, otherwise, execution in step 206;
Step 204: after carrying out Bypass calculating, set up Bypass and connect;
Specifically be behind first place two nodes of decision Bypass, according to the source node of Bypass pipeline, destination node and bandwidth parameter trigger bottom layer node and set up FA LSP (ForwardingAdjacency LSP) between these 2.
Because the summation of former service resources and new service request resource is 8G, surpassed the thresholding flow 7.2G that triggers the bypass operation, so carrying out Bypass calculates, setting up through wavelength then between R1 and these two pe routers of R4 connects, route is R1-T1-T2-T3-T4-R4, make IP wrap in former P node and transmit, directly pass to purpose PE from source PE by optical channel by bottom layer node.
Step 205: the Bypass that sets up based on step 204 connects, and carries out signaling and connects; Then, carry out step 207;
It is exactly to carry out RSVP-TE (Resource ReservationProtocol-Traffic Extension that described execution signaling connects, RSVP based on the traffic engineering expansion) signaling is set up LSP, signaling can be carried the explicit route ERO (EXP LICIT_ROUTE) of LSP, and along this ERO distributing labels, interconnection is set up in driving, finally gets through the connection between end-to-end.
Step 206: carry out signaling based on former road and connect; Then, carry out step 207;
Step 207: open new business, promptly on new access path, open new business.
Another embodiment of the present invention also discloses a kind of Bypass decision-making module, before new business is opened, this Bypass decision-making module carries out anticipation when path computing, if judge after new business is opened by former service transmission path, whether can trigger the Bypass operation of described former service transmission path, if then do not carry out earlier service fulfillment; Then calculate the Bypass path, and wait after the bypass path sets up successfully, directly new business is carried on the Bypass path, the while also switches to other business in the described Bypass bypass.This decision-making module both can be distributed deployment, also can be centralized deployment, if distributed deployment then decision point be generally the first node of LSP of upper layer network.If centralized deployment, then being integrated on the special server, the flow information of upper layer network is collected in unification, and makes a strategic decision to need to do the Bypass operation between which node based on these flow informations.
Another embodiment of the present invention also discloses a kind of router, and as described in Figure 3, this router comprises receiving element, decision package and processing unit;
Described receiving element is used to receive new business and sets up solicited message, and described new business is set up and comprised the required bandwidth resources information of new business in the solicited message;
Described decision package, be used for setting up request message according to described new business, when path computing, required bandwidth resources information according to described new business, if judge after new business is opened by former service transmission path, whether the total bandwidth occupancy can surpass the threshold value of the Bypass operation that triggers described former service transmission path, if instruction process unit loads new business according to the Bypass path after setting up the Bypass path; If not, promptly this paths do not need to carry out Bypass operation, instruction process unit directly loads new business by former service transmission path;
The new business that described processing unit receives according to described receiving element is set up the instruction load new business of solicited message and described decision package.And described processing unit described load new business according to the Bypass path before or after or loading new business in, former business is switched on the Bypass path.
Another embodiment of the present invention also discloses a kind of Bypass treatment system, as described in Figure 4, this system comprises the pe router of 1 integrated above-mentioned Bypass decision-making module at least, described pe router directly or indirectly links to each other with described a plurality of routers, at the first node of this pe router as LSP, after receiving the request of setting up new business, this pe router carries out earlier anticipation when path computing, judge the Bypass operation that after new business is opened by the transmission path of former business, whether can trigger described former service transmission path, confirm this paths do not carry out the Bypass operation time, just directly press original route and load new business, otherwise, after setting up the Bypass path between the pe router of described integrated above-mentioned Bypass decision-making module and another the pe router, load new business according to the Bypass path as the end-node of LSP; Wherein said other pe routers comprise the pe router and the common PE router of integrated above-mentioned Bypass decision-making module.Perhaps
As described in Figure 5, described system comprises the server of at least 1 integrated above-mentioned Bypass decision-making module, described server directly or indirectly links to each other with described a plurality of routers, the flow information of upper layer network is collected in described server unification, and makes a strategic decision to need to do the Bypass operation between which node based on these flow informations; Be specially before new business is opened in this backbone network, carry out anticipation when the path computing by described server, judge the Bypass operation that after new business is opened by the transmission path of former business, whether can trigger described former service transmission path, confirm this paths do not carry out the Bypass operation time, just instruction is directly pressed original route as the pe router of the first node of described transmission path and is loaded new business, otherwise, instruct described pe router and other pe routers between load new business according to the Bypass path after setting up the Bypass path.
In addition, above embodiment is not only applicable to router network, also is applicable to SDH network, OTN network and the various data transmission network that relates to multilayer.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (10)
1, a kind of bypass processing method is characterized in that, this method comprises:
Receive new business and set up request message, obtain the required bandwidth resources information of described new business;
Required bandwidth resources information according to described new business, if judge that described new business is loaded by former service transmission path, whether can trigger the Bypass bypass operation of this transmission path, if after setting up the Bypass path, load described new business according to described Bypass path; Otherwise, load described new business by described former service transmission path.
2, method according to claim 1, it is characterized in that, if the described new business of described judgement is loaded by former service transmission path, the Bypass bypass operation that whether can trigger this transmission path comprises: if judge that described new business is loaded by former service transmission path, whether the total bandwidth occupancy of described transmission path can surpass the threshold value of the Bypass operation that triggers this transmission path.
3, method according to claim 1 is characterized in that, described load described new business according to the Bypass path before or after or loading described new business in, described former business is switched on the described Bypass path.
4, a kind of bypass processing module, it is characterized in that, this module is used for receiving after new business sets up request message, according to the required bandwidth resources information in the described request message, if judge that working as described new business is loaded by former service transmission path, whether can trigger the Bypass bypass operation of this transmission path, if after setting up the Bypass path, load described new business according to described Bypass path; Otherwise, load described new business by described former service transmission path.
5, bypass processing module according to claim 4, it is characterized in that, if the described new business of described judgement is loaded by former service transmission path, the Bypass bypass operation that whether can trigger this transmission path comprises: if judge that described new business is loaded by former service transmission path, whether the total bandwidth occupancy of described transmission path can surpass the threshold value of the Bypass operation that triggers this transmission path.
6, a kind of router is characterized in that, described router comprises decision package, and described decision package is connected with processing unit with receiving element respectively;
Described receiving element is used to receive new business and sets up solicited message, and described new business is set up and comprised the required bandwidth resources information of new business in the solicited message;
Described decision package, be used for required bandwidth resources information according to described new service request message, if judge that described new business is loaded by former service transmission path, whether can trigger the Bypass bypass operation of this transmission path, if instruction process unit loads described new business according to described Bypass path after setting up the Bypass path; Otherwise instruction process unit loads described new business by described former service transmission path;
The new business that described processing unit receives according to described receiving element is set up the described new business of instruction load of solicited message and described decision package.
7, router according to claim 6 is characterized in that, described processing unit described load described new business according to the Bypass path before or after or loading described new business in, former business is switched on the Bypass path.
8, a kind of bypass treatment system is characterized in that, this system comprises at least two provider edge, and described two provider edge are respectively as first node of former service transmission path and end-node;
Described provider edge as the first node of former service transmission path is used for after receiving the request message of setting up new business, according to the required bandwidth resources information in the described request message, if judge that working as described new business is loaded by described former service transmission path, whether can trigger the Bypass bypass operation of this transmission path, if, and another provider edge between load described new business according to described Bypass path after setting up the Bypass path; Otherwise, load described new business by described former service transmission path.
9, a kind of bypass treatment system, it is characterized in that, this system comprises at least 1 server and a plurality of router, described server directly or indirectly links to each other with described a plurality of routers, this server is after receiving the request message of setting up new business, according to the required bandwidth resources information in the described request message, if judge that working as described new business is loaded by former service transmission path, whether can trigger the Bypass bypass operation of this transmission path, if instruct a router in described a plurality of router after setting up the Bypass path, to load described new business according to described Bypass path as the first node of described transmission path; Otherwise, instruct described router to load described new business by described former service transmission path as the first node of transmission path.
10, bypass treatment system according to claim 9 is characterized in that, described router is a provider edge, or service provider's core router and provider edge.
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| CN200810068226A CN101616054A (en) | 2008-06-27 | 2008-06-27 | A kind of bypass processing method, device and system and router |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101945048A (en) * | 2010-09-20 | 2011-01-12 | 中兴通讯股份有限公司 | Method, system and device for establishing label switch path |
| CN102761478A (en) * | 2012-05-17 | 2012-10-31 | 中兴通讯股份有限公司 | Method and system for sending business data |
| CN102904827A (en) * | 2012-10-09 | 2013-01-30 | 中国联合网络通信集团有限公司 | Method, device and bypass networking structure for locally sharing bypass flow |
| WO2014205792A1 (en) * | 2013-06-28 | 2014-12-31 | 华为技术有限公司 | Method, apparatus and system for establishing optical bypass |
| CN104735046A (en) * | 2014-12-02 | 2015-06-24 | 重庆晴彩科技有限公司 | Normal/route mode network physical link emergency intelligent switching system |
| CN104735047A (en) * | 2014-12-02 | 2015-06-24 | 重庆晴彩科技有限公司 | Intelligent mixed mode network physical link emergency switching system |
| WO2016202098A1 (en) * | 2015-06-16 | 2016-12-22 | 中兴通讯股份有限公司 | Ethernet service configuration method and device, and network manager |
| CN107786445A (en) * | 2016-08-31 | 2018-03-09 | 南京中兴软件有限责任公司 | The by-pass method and device of a kind of tunnel traffic |
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2008
- 2008-06-27 CN CN200810068226A patent/CN101616054A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101945048B (en) * | 2010-09-20 | 2014-07-16 | 中兴通讯股份有限公司 | Method, system and device for establishing label switch path |
| CN101945048A (en) * | 2010-09-20 | 2011-01-12 | 中兴通讯股份有限公司 | Method, system and device for establishing label switch path |
| CN102761478A (en) * | 2012-05-17 | 2012-10-31 | 中兴通讯股份有限公司 | Method and system for sending business data |
| CN102761478B (en) * | 2012-05-17 | 2015-01-28 | 中兴通讯股份有限公司 | Method and system for sending business data |
| CN102904827B (en) * | 2012-10-09 | 2015-11-25 | 中国联合网络通信集团有限公司 | Bypass flow local methodology and bypass networking structure |
| CN102904827A (en) * | 2012-10-09 | 2013-01-30 | 中国联合网络通信集团有限公司 | Method, device and bypass networking structure for locally sharing bypass flow |
| CN104521188B (en) * | 2013-06-28 | 2017-09-05 | 华为技术有限公司 | A kind of methods, devices and systems for setting up light bypass |
| CN104521188A (en) * | 2013-06-28 | 2015-04-15 | 华为技术有限公司 | Method, apparatus and system for establishing optical bypass |
| US9736066B2 (en) | 2013-06-28 | 2017-08-15 | Huawei Technologies Co., Ltd. | Method, apparatus and system for establishing optical bypass |
| WO2014205792A1 (en) * | 2013-06-28 | 2014-12-31 | 华为技术有限公司 | Method, apparatus and system for establishing optical bypass |
| CN104735046A (en) * | 2014-12-02 | 2015-06-24 | 重庆晴彩科技有限公司 | Normal/route mode network physical link emergency intelligent switching system |
| CN104735047A (en) * | 2014-12-02 | 2015-06-24 | 重庆晴彩科技有限公司 | Intelligent mixed mode network physical link emergency switching system |
| CN104735047B (en) * | 2014-12-02 | 2018-04-27 | 重庆晴彩科技有限公司 | A kind of hybrid-mode network physical link is met an urgent need intelligent switching system |
| CN104735046B (en) * | 2014-12-02 | 2018-09-04 | 重庆晴彩科技有限公司 | A kind of emergent intelligent switching system of normal/bypass mode network physical link |
| WO2016202098A1 (en) * | 2015-06-16 | 2016-12-22 | 中兴通讯股份有限公司 | Ethernet service configuration method and device, and network manager |
| CN107786445A (en) * | 2016-08-31 | 2018-03-09 | 南京中兴软件有限责任公司 | The by-pass method and device of a kind of tunnel traffic |
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